HP 33s - Manual (Page 270)

16–10 Statistics Programs
100 g
%@
)
 Enters y–value of data pair.
36.2 g
&@

)
 Enters x–value of data pair.
97.5 g
%@
)
 Enters y–value of data pair.
35.1 g
&@
)
 Enters x–value of data pair.
95.5 g
%@
)
 Enters y–value of data pair.
34.6 g
&@
)
 Enters x–value of data pair.
94 g
%@
)
 Enters y–value of data pair.
X R /
)  Calculates the correlation
coefficient.
g
/
)
 Calculates regression coefficient
B
.
g
/
)
 Calculates regression coefficient
M.
g
%@
)
 Prompts for hypothetical x–value.
37 g
&@
)   Stores 37 in X and calculates
yˆ
.
101 g
%@
 )  Stores 101 in Y and calculates
xˆ .
Example 2:
Repeat example 1 (using the same data) for logarithmic, exponential, and power
curve fits. The table below gives you the starting execution label and the results (the
correlation and regression coefficients and the x– and y– estimates) for each type
of curve. You will need to reenter the data values each time you run the program
for a different curve fit.